Terrible “service” from MTN

My Huawei P10 lite broke after I had it for about three weeks. I have sent it in for repairs via MTN, upon which they ensured me that my phone should be back within the next three weeks. Well this was on the 15th of July, thus more than two months ago! I still have not received my phone as they keep saying that they are waiting for spares. How do you sell a phone which the whole country service providers can not maintain and repair. This service, or the lack thereof, is unacceptable. I need to phone every second day as no one is able to even tell me when I can expect to receive my phone. Working with an old, broken phone has caused me great inconvenience and hours and hours talking to a call centre. I would not recommend Huawei or MTN to anyone!!!!!!